What are the pros and cons to each system in their current design? What are the weight savings of each? Which one seems to be tougher?
The MVM Motorsports Lightweight Belt Drive System for 2017-2018 models Skidoo Gen4 replaces the heavy stock chain drive with no modification to OEM parts. Installation takes approximately 2 hours. Kit includes double sealed bearing for the jack shaft and a seal for the drive shaft bearing for miles of worry free fun. No more chain slap and Smooth utilization of power.So overall they are proving to be reliable then.
Looks like both are listed as being 4 to 4.5 lbs lighter. 3lbs rotational on a tki, I would assume MVM is similar?
Everyone will have their own preference!The MVM Motorsports Lightweight Belt Drive System for 2017-2018 models Skidoo Gen4 replaces the heavy stock chain drive with no modification to OEM parts. Installation takes approximately 2 hours. Kit includes double sealed bearing for the jack shaft and a seal for the drive shaft bearing for miles of worry free fun. No more chain slap and Smooth utilization of power.
Weight reduction of 4 lbs
Each pound of rotating mass is equal to 2 horsepower. You WILL notice huge gains in low and mid range power.
Our extensive research and hands on back country testing has led to what appears to be the strongest longest lasting belt on the market.
Each component is machined out of billet aluminum. Easy access adjustment with positive lock idler pulley with dual bearings. Opens up lots of space with a 2 quart see through plastic tank. Low oil sensor hole included. No more gear oil! No more broken chains and chain cases to repair in the back country!
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Much more responsive with the belt!i'm also considering a belt drive for my 2020 850 mainly for ease of maintenance and not having a busted chain ruin the day. in terms of performance is 8 hp a huge gain in performance and is that a realistinc assumption (2hp X 4lb weight loss=8hp gain) ? i've seen quite a few threads where people said they couldn't tell the difference in perfomance.
I just measured and marked a half inch space with a marksalot pen!I've personally seen the factory turbo ski-doo sitting in the TKI shop. I wouldn't worry about that. I remember him commenting something about the spline engagement on the factory turbo sled is less between the bottom gear and drive shaft and he noticed more play with under a 100 miles than he's seen on past Ski-doo sleds (OEM configuration). From what I understood his kit increases the spline engagement over stock on the turbo. I'm a Cat guy, but that seems like a good thing to me. Call or email them to get the full skinny on that in case I misunderstood. One thing I've always appreciated about TKI is they hard anodize all of their parts which helps long term durability of splines and you'll get reduced corrosion from chemicals or road salt. Does the MVM kit have the little marks on the cover for quick checking the belt deflection?